– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sun 11 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sun 11 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sun 11 Jan Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 59mm), heaviest during Mon afternoon. Very mild (max 12°C on Tue morning, min 5°C on Sun morning). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 15°C on Fri morning, min 5°C on Wed night). Wind will be generally light. | |||||||||||||||||
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  | |  |  | |  |  | | | | | | |
mod. rain | mod. rain | heavy rain | heavy rain | heavy rain | rain shwrs | some clouds | some clouds | clear | rain shwrs | some clouds | some clouds | clear | clear | clear | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
5 | 5 | 12 | 15 | 13 | 9 | — | — | — | 0.1 | — | — | — | — | — | — | — | — | |
max °C | 6 | 7 | 8 | 8 | 9 | 11 | 12 | 11 | 10 | 10 | 9 | 8 | 11 | 10 | 9 | 15 | 13 | 10 |
min °C | 5 | 6 | 7 | 8 | 9 | 9 | 11 | 11 | 9 | 9 | 8 | 5 | 8 | 8 | 9 | 12 | 11 | 9 |
2 | 4 | 4 | 6 | 7 | 8 | 11 | 11 | 9 | 9 | 8 | 4 | 8 | 8 | 8 | 12 | 11 | 9 | |
1450 | 2050 | 2350 | 2400 | 2650 | 2650 | 2700 | 3150 | 3400 | 2700 | 2850 | 3000 | 3350 | 3350 | 3400 | 3700 | 3800 | 3800 | |
Cloud base (m) | 600 | 650 | 600 | 600 | 600 | 600 | 750 | 1000 | 9550 | 850 | 650 | 8750 | 9350 | |||||
 | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:54 | — | — | 7:54 | — | — |
 | — | 4:34 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:40 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 59mm), heaviest during Mon afternoon. Very mild (max 12°C on Tue morning, min 5°C on Sun morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 15°C on Fri morning, min 5°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.